[PDF] Top 20 Dendritic poly(ether-imide)s: synthesis, characterization, and modification

... of dendritic macromolecules with an aromatic ether–imide inner structure and modifiable benzyl ether chain ends is ...in ether–imide dendron synthesis involve an ... See full document

... 162.6 and 165.2 ppm for dendritic wedges [G-X]NO 2 (X ) 0, 1, and ...the dendritic wedges to the core molecule was readily followed by the disappearance of the resonances for the protons of ... See full document

... The synthesis of the model compounds is detailed in Scheme ...8, and 9 and the polymer ...the dendritic, linear, and terminal subunits of the hyperbranched poly- mer to be ... See full document

... tion and the hyperbranched poly(aryl ether oxazole) ...9.72, and 9.63 ppm are 102, 100, 95, and 102 respectively, which indicates the abundance of compounds 6, 7 -4 , and 7 -5 in ... See full document

... substitution and readily react with carboxylic acids to form aryl ketone ...P2 and P3, the 1 H NMR analysis showed that the functionali- zation was almost completed ( ...3 and THF(D 4 ) revealed an ... See full document

... Chemical Modification of Hyperbranched Poly(aryl ether oxadiazole) P1 Hyperbranched polymers are characterized by their large number of chain-end ...into ether groups to yield the ether ... See full document

... monomer and resulted in an irregular dendritic structure in which three different types of subunits ...linear, and dendritic) could be ...hyperbranched poly- mers, is defined as the sum ... See full document

... mechanical, and electrical properties, as well as excellent chemical ...the synthesis of soluble polyimides without deteriorating their otherwise excellent properties ...[10,11], and kinked [12 – 14] ... See full document

... UV and PL spectra of the polymers in THF solution are presented in Figure ...423 and 485 ...the dendritic phenyl monomer in the copolymer ...nm and a shoulder peak in the range 520-550 ...of ... See full document

... N-methyl-2-pyrrolidone, and palladium/carbon were purchased from Fluka & ...anhydride, and triphenyl phosphite were purchased from Acros Chemical ...acid, and phosphoryl trichloride were purchased ... See full document

... structure and are capable of enhancing the solubility of hydrophobic compounds in ...concentration, and an increased solubi- lization of hydrophobic molecules in aqueous solutions was observed even at ... See full document

... C. Poly(imide-siloxane) selected to blend into PBa to increase T g was also discussed by Takeichi et ...An imide-containing structure incorporated into benzoxazine can improve the thermal properties ... See full document

... heating and cooling rate of 10 ...standard and THF as an ...spectrophotometer, and fluorescence spectra were obtained on a Hitachi F-4500 ...excitation and emission slits in solutions were 5 ... See full document

... of poly(fluorene-co-alt-phenylene)s containing various generations of dendritic oxadiazole (OXD) pendent wedges were synthesized by the Suzuki polyconden- sation of OXD-functionalized ... See full document

... °C for PETS95. The optical transmissions exceeded 86% for λ = 400 nm for all of the amorphous polyesters. The tensile modulus and strength of the copolyesters increased with BHEPS. However, ... See full document

... Stupp, poly(ethylene oxide) and poly- (propylene oxide) as the flexible coils were used by Lee and ...rod and an elongated flexible coil connected by covalent linkage may result in new ... See full document

... PUDIC and amine groups of PAN- ...backbone and were expanded with PUDIC from the insertion of it due to the formation of ...PUDIC and PANIDBSA also contributed to the blue shift of the k max of ... See full document

... PMMA, S10, and .... S10 ...the S and DT hybrid materials is in the range of 290 – 315, and 376 – 386 8C, ...the S is due to the crosslinked polymer structure of the ... See full document

... group and result in high-performance polyben- ...with poly(ethylene oxide) (PEO) to prepare polybenzoxazine/PEO ...as poly(4-vinyl- phenol), 11 phenoxy, 12 and epoxy, 13–15 because the ... See full document

... Kuo-Yu Chen, Institute of Biomedical Engineering and Material Science, Central Taiwan University of Science and Technology, Taichung,. Taiwan, ROC; Tel: 886-4-22391647 ext.[r] ... See full document